tradi’tion n. body of beliefs, facts, etc., handed down to generation to generation without being reduced to writing; the process of handing down.
Watch the hand...it is quicker than the eye.https://www.tennisplayer.net/article...d-slice-drive/
"In the Trey Waltke article, first up in the "Classic Lessons" section just to the left of here, racket tip stays level to the court immediately after contact, too, in the repeating video of Waltke's own tremendously effective slice."-bottle
This video was cherry picked to demonstrate Trey Waltke slicing a backhand in a petri dish. In all of these shots he has perfect balance, plenty of time and a ball in perfect position in order for him to demonstrate the objective of his technique lesson...which is a very sound one.
"But down below, where there's a plethora of still photos of Rosewall all in a cluster, one of them shows a sudden plunge of the racket tip from contact before everything goes up in a similar way."-bottle
Here is the reality of tennis...a subtle truth. This is an actual shot...possibly played in practice, but Ken Rosewall has not necessarily cherry picked this sequence and for good reason. Now we can see what happens under more game situation like conditions. This guy can apply leverage to the ball from any angle. The first picture shows Rosewall making a backwards movement because the ball is coming a bit deeper than he anticipated, hence he is adjusting his body and his swing to accommodate the bounce and speed of the ball. You can see from Rosewall's stance that he is playing a defensive shot, he is going to play this ball barely in front of his hip, with a combination of spin, placement and subtle pace to a place in the court where he has calculated that his opponent can do the minimum amount of damage to him on the next shot...as he did not have the time to line up his feet as he would have under ideal shot conditions so he does what all great champions and tennis players do...he ad-libs. He never really gets his weight onto his front foot, at least not not in the sense of going forward as he optimally would as his footwork and his momentum are going too much sideways, but you can see that just like Federer in the wonderful world of Yandell video "Forehand not Gone", he automatically moves his back foot into position behind his front foot in his best attempt to assimilate perfect hitting conditions...to hold his balance and to line up his shot. Here is a Great Master of the Game at work.
"All this material shows Budge and Rosewall getting arm straight sooner than Waltke, who starts straightening at same time but doesn't finish till shortly before contact."-bottle
This business about the "straight arm" is a very interesting point...but it actually does not have much to do with the actual shot production. What is fundamentally important is to observe the path of Rosewall's hand on the racquet...notice how it it follows on a pure parabolic path from the beginning of his forward swing until he finishes his follow through. Waltke's point of the "L" that the arm forms in the backswing and maintains throughout the swing is fundamentally spot on. Waltke's hand also is on "track" throughout his swing and is traveling at the same speed as his shoulders, which is the most important fundamental aspect of the execution of any tennis shot...get the racquet, which is an extension of the hand, on track. The wrist is going to play its part as usual as tennis_chiro puts it..."the passive hinge". Perhaps it is easier to imagine the racquet head being an extension of the hand if you use the ping pong paddle as the tool instead.
The arm is going to bend a bit depending on the length of the backswing and the amount of turn that the player is putting on his torso so at some point the arm is naturally going to flex at the elbow...largely because of the movement in positioning the body to a moving and spinning ball. In golf, this front arm is basically going to maintain its straightness, at least among professionals and for good reason. Number one, the ball is lying still on the ground so it is necessary for the arm to maintain its precise distance from the ball so that it will return the club head precisely to the ball. One must take into account the size of the golf club head also to realize the importance of the straight arm.
In a tennis shot the single arm backhand is a swinging appendage and it is the weight of the racquet head that will govern the straightness of the arm. As the hand is making its descending journey along the track that is basically parallel to the shoulders, the gravity of the racquet head is going to dictate the straightening of the arm at some point in the swing...and not some conscious effort on the part of the player.
Incidentally...when "Rosewall swings the open racket like a tray of canapes before he turns it over", it doesn't necessarily mean that something will happen more abruptly. It is only the Master manipulating the face of the racquet...everything is in place for the unfurling of the swing for the racquet face to meet the ball in the manner that he has designed it to. A tray of canapes...how bottle-esque is that? Nice play...Johnny!
The point of the attractive Swiss femme fatale leaning on the ball is the key to it all...she's the icing on the cake. Notice how Rosewall's weight is simultaneously sinking into his front leg at the very same moment that his racquet and his hand is sinking into the ball. Notice how his shoulder is lowering the boom on the ball at the same time. Sheer poetry in motion. By "leaning" on the ball with the simultaneous racquet head tracking the ball via the path of the hand you have a created a nice tasty recipe for a perfectly pitched "ping" on the strings...an underspin masterpiece. Voila!
With regards to Federer's slice...go down to "The Puzzle of the Slice", which is really no puzzle at all if you understand some basic engineering principles and the effects that they have "created" on the game of tennis...take a look at Roger's racquet and "hand" action on this shot.
https://www.tennisplayer.net/article...fferent-story/
Roger is a Great Master as well. He is not a slave to technique. Here he is altering his stroke to fit the circumstances and produces the perfect shot for the moment. I really like his action here...and if I was his coach I would have him using this shot against Djokovic and Nadal whenever the situation dictated, which means mixing it up with deep balls with variety of pace and spin, in order for the Swiss to get the Serb and the Spaniard just a bit out of kilter and off balance, in order to deliver the payload...the knockout blow.
I am puzzled why Federer does not use this tactic more often...but it is quite possible that there is something that I don't understand about the effects of the engineering on the game...the combination of frames, strings and court surfaces that may make this an unacceptable percentage tactic at that level of the game. Be that as it may...Trey Waltke is probably correct in his assessment that for 99.9% percent of the population this is still a great tactic.



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